获取本机ip及端口号

/**
     * 获取本机ip
     */
    public static String getLocalIP() {
        InetAddress addr = null;
        try {
            addr = InetAddress.getLocalHost();
        } catch (Exception e) {
            e.printStackTrace();
        }
        byte[] ipAddr = addr.getAddress();
        String ipAddrStr = "";
        for (int i = 0; i < ipAddr.length; i++) {
            if (i > 0) {
                ipAddrStr += ".";
            }
            ipAddrStr += ipAddr[i] & 0xFF;
        }
        return ipAddrStr;
    }

    /**
     * 获取运行程序端口
     * @return
     */
    public static String getLocalPort() throws MalformedObjectNameException, AttributeNotFoundException, MBeanException, ReflectionException, InstanceNotFoundException {
        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
        Set objectNames = mBeanServer.queryNames(new ObjectName("*:type=Connector,*"), null);
        if (objectNames == null || objectNames.size() <= 0) {
            throw new IllegalStateException("Cannot get the names of MBeans controlled by the MBean server.");
        }
        for (ObjectName objectName : objectNames) {
            String protocol = String.valueOf(mBeanServer.getAttribute(objectName, "protocol"));
            String port = String.valueOf(mBeanServer.getAttribute(objectName, "port"));
            // windows下属性名称为HTTP/1.1, linux下为org.apache.coyote.http11.Http11NioProtocol
            if (protocol.equals("HTTP/1.1") || protocol.equals("org.apache.coyote.http11.Http11NioProtocol")) {
                return port;
            }
        }
        throw new IllegalStateException("Failed to get the HTTP port of the current server");

    }